"Google" LearnServer - how do find what I'm looking for?

I watched the following video on ditches and culverts and he refers to another set of videos (2:03) and a workbook (2:47) but I can't seem to find them on LearnServer. Anyone have any tricks to "Google" LearnServer? lol

https://learn.bentley.com/app/VideoPlayer/LinkToIndividualCourse?LearningPathID=111750&CourseId=129583&MediaID=5018909

Thanks,

Jeff